Improvement in door-bells



P. SHELLENBACK. & W. E. DRA'YER Door-Bell No. 221,110. w Patented Oct. 28, I879.

WZTNESSES:

UNITED STATES PATENT OFFICE, v

PETER SHELLENBAOK AND WILLIAM E. DRAYER, OF HAMILTON, OHIO.

IMPROVEMENT IN DOOR-BELLS.

Specification forming part of Letters Patent No. 221,110, dated October .28, 1879 application filed July 14, 1879.

To all whom it may concern:

Be it known that we, PETER SHELLENBACK and WILLIAM E. DRAYER, of Hamilton, B ntler county, Ohio, have invented a new and useful Improvement in Door-Bells, of which the following is a specification. 1 Figure 1 represents a sectional elevation of the bell and crank. Fig. 2 is afront elevation of the same with the stand and working parts.

B is the crank, into which is inserted the spindle O, which spindle passes through the plate D and through the triangle F. By means of a screw-thread out upon the spindle C it is secured through the jam-nut G. The triangle F work-s against the pin I on the lever-arm H, which arm is secured to the plate D by means of a screw.

The pallet N on the lever-arm H operates against the pallet O on the hammer-arm P, and the pallet J on the lever-arm H operates against the pallet M on the hammer-arm P.

L is a wire spring coiled around the screw, which passes through the hammer-arm P and rests against the bellstu 1 E.

The operation of the door-bell is as follows, viz: Turning the crank 13 to I the right, the triangle F works upon the pin I on the leverarm H, and thus the pallet J on the lever-arm H strikes against the pallet M on the hammerarm P, and causes the hammer K to draw back from the bell A. This compresses the spring L until-it is released by the point of the triangle F passing the pin I on the leverarm H. The coiled spring L causes the ham merK to strike the bell A.

By turning the crank B to the left the triangle F strikes upon the pin I on the leverarm H, and causes the pallet N on the leverarm H to'operate against the pallet O on the hammer-arm P. This causes the hammer K to draw back from the bell A, which compresses the spring L until the point on the triangle F passes the pin I on the leverarm H. The coiled spring L causes the hammer K to strike the hell A.

The pallets N and J on the lever-arm H and the pallets O and M on the hammer-arm P, by coming in contact, prevent the hammer K from going out of its proper position.

What we claim as new in our invention,

and desire to secure by Letters Patent, is-

In' a door-bell, the lever-arm H, with its pallets N and J operating against the pallets 0 and M on the hammer-arm P, in combination with the triangle F, which strikes against the pin I, substantially as shown and above described.

PETER SHELLENBAGK. WILLIAM E. DRAYER. Witnesses:

L. A. BoLI,

J AS. W. MOORE. 

